Company lists · Data refreshed September 2026

Top 25 Marine systems integration firms based in France

Name: Marine systems integration firms based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 145 companies tracked

RevenueBase identified 145 marine systems integration firms headquartered in France as of September 2026 and tracks 15,365 professional contacts across them, including 1,537 with verified work emails. La Ciotat is the largest hub.

This list covers marine systems integration firms headquartered in France, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

145Companies

15,365Contacts tracked

1,537Verified emails

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The 25 largest marine systems integration firms based in France

Ranked by team size

Top 25 of 145 marine systems integration firms based in France, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to marine systems integration firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Naval Group	Partial evidence	Paris Cedex 15, FranceHQ checked Sep 28, 2026	10001+	11,130 contacts →
	Partial evidence “As an international naval defence player, Naval Group is a partner for countries seeking to maintain control of their maritime sovereignty.” Source: RevenueBase Database · checked Sep 28, 2026
2	Chantiers DE L'atlantique	Partial evidence	Saint-nazaire, FranceHQ checked Sep 28, 2026	1,001-5,000	2,004 contacts →
	Partial evidence “Installée sur la façade Atlantique, Chantiers de l’Atlantique est une entreprise de construction maritime (paquebots, sous-stations…) et de services aux flottes.” Source: RevenueBase Database · checked Sep 28, 2026
3	Alseamar	Indirect evidence	Rousset, FranceHQ checked Sep 28, 2026	201-500	139 contacts →
	Indirect evidence “Founded in 2015, ALSEAMAR, a subsidiary of the ALCEN Group, develops, designs, operates and maintains high-performance underwater solutions that meet the requirements of…” Source: RevenueBase Database · checked Sep 28, 2026
4	Sirehna	Partial evidence	Bouguenais, FranceHQ checked Sep 28, 2026	51-200	113 contacts →
	Partial evidence “SIREHNA is a subsidiary of Naval Group (French naval system integrator).” Source: RevenueBase Database · checked Sep 28, 2026
5	D-Ice Engineering	Indirect evidence	Nantes, FranceHQ checked Sep 28, 2026	11-50	49 contacts →
	Indirect evidence “We are a deeptech company based in France.” Source: RevenueBase Database · checked Sep 28, 2026
6	SIMAR	Strong evidence	Marseille, FranceHQ checked Sep 28, 2026	11-50	45 contacts →
	Strong evidence “Created in 1978, SIMAR (Société Industrielle et Maritime d'Automation et Régulation) is the leading independant system integrator for marine electronics (Civil and Naval) as well…” Source: RevenueBase Database · checked Sep 28, 2026
7	Kent Marine Equipment	Partial evidence	Saint-herblain, FranceHQ checked Sep 28, 2026	51-200	39 contacts →
	Partial evidence “Depuis 1974, Kent Marine Equipment accompagne les professionnels du naval et du fluvial.” Source: RevenueBase Database · checked Sep 28, 2026
8	Thalos	Partial evidence	Ploemeur, FranceHQ checked Sep 28, 2026	11-50	38 contacts →
	Partial evidence “Créateur de solutions de communication et d'outils d'analyse innovants pour le monde maritime.” Source: RevenueBase Database · checked Sep 28, 2026
9	MACOR	Indirect evidence	Marseille, FranceHQ checked Sep 28, 2026	11-50	36 contacts →
	Indirect evidence “MACOR is a company specializing in ship repair and maintenance for 40 years.” Source: RevenueBase Database · checked Sep 28, 2026
10	AMM	Partial evidence	Marseille, FranceHQ checked Sep 28, 2026	11-50	33 contacts →
	Partial evidence “4 companies, 4 fields of expertise, grouped in one place AMM Automation, Measurement, Maintenance (1985) AMM Marine Electricity (2012) AMM Control Command (2016) EMR Electric…” Source: RevenueBase Database · checked Sep 28, 2026
11	Pixel SUR MER	Strong evidence	Lorient, FranceHQ checked Sep 28, 2026	11-50	31 contacts →
	Strong evidence “16 years of consulting and services: mechatronic systems integration, fiber optic instrumentation, navigation, routing, hardware & software development.” Source: RevenueBase Database · checked Sep 28, 2026
12	Furuno France	Indirect evidence	Mérignac, FranceHQ checked Sep 28, 2026	11-50	29 contacts →
	Indirect evidence “Furuno France S.A.” Source: RevenueBase Database · checked Sep 28, 2026
13	DL Services	Indirect evidence	Haute-goulaine, FranceHQ checked Sep 28, 2026	11-50	29 contacts →
	Indirect evidence “As independent designers, we cater to our customers wishes, actively participating in new building and modernization / refit projects, putting together food flow concepts, lay-out…” Source: RevenueBase Database · checked Sep 28, 2026
14	Foure Lagadec Marine	Indirect evidence	Le Havre, FranceHQ checked Sep 28, 2026	1,001-5,000	27 contacts →
	Indirect evidence “Héritier du savoir-faire d’ACH Engineering, l’entreprise a évolué au travers de son activité de maintenance des équipements livrés.” Source: RevenueBase Database · checked Sep 28, 2026
15	Tenderlift	Indirect evidence	Canet En Roussillon, FranceHQ checked Sep 28, 2026	11-50	26 contacts →
	Indirect evidence “Tenderlift conçoit des solutions de modularité pour simplifier la vie à bord et la navigation.” Source: RevenueBase Database · checked Sep 28, 2026
16	Atlantic Propulsion Service	Indirect evidence	St Brevin Les Pins, FranceHQ checked Sep 28, 2026	11-50	25 contacts →
	Indirect evidence “Atlantic Propulsion Service is a company based in France near the Atlantic Coast close to Saint Nazaire.” Source: RevenueBase Database · checked Sep 28, 2026
17	Geps Techno	Partial evidence	Guérande, FranceHQ checked Sep 28, 2026	11-50	25 contacts →
	Partial evidence “GEPS Techno builds and operates autonomous, connected offshore platforms serving as persistent floating infrastructure for maritime monitoring & surveillance, along with other…” Source: RevenueBase Database · checked Sep 28, 2026
18	SUD Plaisance	Indirect evidence	Marseille, FranceHQ checked Sep 28, 2026	11-50	20 contacts →
	Indirect evidence “m2 dédiés au nautisme dans un showroom rénové sur le Port de la Pointe Rouge.” Source: RevenueBase Database · checked Sep 28, 2026
19	D2m Engineering	Partial evidence	Six Fours Les Plages, FranceHQ checked Sep 28, 2026	11-50	19 contacts →
	Partial evidence “At d2m, our expert team of marine engineers, naval architects, and offshore contractors have been committed to crafting innovative solutions for complex maritime projects for over…” Source: RevenueBase Database · checked Sep 28, 2026
20	AJ Marine	Partial evidence	Valbonne, FranceHQ checked Sep 28, 2026	11-50	16 contacts →
	Partial evidence “AJ Marine, an official Caterpillar AMD, are experienced, quick response marine engineers that can attend to your yacht anywhere, anytime.” Source: RevenueBase Database · checked Sep 28, 2026
21	Marinelec Technologies	Partial evidence	Quimper, FranceHQ checked Sep 28, 2026	11-50	15 contacts →
	Partial evidence “Our company has many years of experience and expertise in the design and manufacturing of maritime equipments, Marinelec Technologies proposes you a global offer to ensure all the…” Source: RevenueBase Database · checked Sep 28, 2026
22	Yachtelec	Indirect evidence	La Ciotat, FranceHQ checked Sep 28, 2026	11-50	15 contacts →
	Indirect evidence “Implanté au sein de La Ciotat Shipyards, regroupant les chantiers navals leaders en Méditerranée, YACHTELEC est spécialisé en électricité (courant fort/faible), électronique et…” Source: RevenueBase Database · checked Sep 28, 2026
23	Navicom	Indirect evidence	Quimper, FranceHQ checked Sep 28, 2026	11-50	15 contacts →
	Indirect evidence “L’équipage Navicom, ce sont des femmes et des hommes à l’écoute du marché pour vous proposer les meilleurs produits de dernière génération en termes de technologie à bord et de…” Source: RevenueBase Database · checked Sep 28, 2026
24	Cadden	Strong evidence	Nantes, FranceHQ checked Sep 28, 2026	11-50	12 contacts →
	Strong evidence “Cadden has a long experience in developing precise navigation systems for marine applications, hydrographic surveying technology, motion sensors, Lidar, as well as in…” Source: RevenueBase Database · checked Sep 28, 2026
25	Nauticoncept	Indirect evidence	Mâcon, FranceHQ checked Sep 28, 2026	11-50	12 contacts →
	Indirect evidence “Nauticoncept développe depuis 10 ans en France des solutions digitales et connectées pour simplifier la gestion, le suivi et l’usage des bateaux.” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: marine systems integration firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names marine systems integration firms.
Partial evidence: Its own public description names part of marine systems integration firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name marine systems integration firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 145 marine systems integration firms based in France

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Marine systems integration firms based in France at a glance

As of Sep 28, 2026

10.0%Verified-email coverage

106.0Average contacts per company

1-10Median size (employees)

5.5%Largest-city concentration · La Ciotat

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

10001+

Email recency for this list is measured worldwide rather than for France, so it is reported there. Company counts and contact totals on this page are exact for France, over 145 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among marine systems integration firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in France whose own description of what they do matches “marine systems integration firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names marine systems integration firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among marine systems integration firms, and records with no verified work email. Companies headquartered outside France are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 1,537 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 28, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names marine systems integration firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many marine systems integration firms are there based in France?

RevenueBase identified 145 marine systems integration firms headquartered in France as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Naval Group, headquartered in France, tops this list with the largest team on record.

Which city has the most marine systems integration firms?

La Ciotat leads with 8 headquartered companies, followed by Marseille (7) and Antibes (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,537 verified decision-maker contacts tracked across these 145 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.